Tobacco pipe



Feb. 4, 1941.

C. J. BURCH TOBACCO PIPE Filed May 5, 1959 INVENToR.

ATTORNEYS.

Patented Feb. 4, 1941 N UNITED STATES PATENT OFFICE 2,230,930 l ToBAcco PIPE Charles J. Burch, Brazil, Ind.

Application May 3, 1939, Serial No. 271,593

1 Claim.

This invention relates to tobacco pipes and an object is to provide a pipe with a simple but effectve means for trapping moisture and nicotine which otherwise would enter the mouthof the user.

Another object is to provide a device of this character which can be easily cleaned and, if desired, can be made in the form of a separate attachment to be placed between the mouthpiece and the bowl stem.

A further object is to provide the trap with a means which prevents fumes from iowing along an uninterrupted straight line from bowl to mouth-piece, thereby acting to deflect and condense the fumes.

With the foregoing and other objects in View which will appear as the description proceeds, the invention consists of certain novel details: of construction and combinations of parts hereinafter more fully described and pointed out in the claim, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

In the accompanying drawing the preferred form of the invention has been shown.

In said drawing Figure 1 is a vertical longitudinal section through the pipe.

Figure 2 is a similar View showing a modification.

Figure 3 is also a section showing another form.

Referring to the figures by characters of reference I designates a pipe bowl having a short stem 2 extending therefrom, the outer end of the passage 3 therein having a tapered counterbore 4.

The mouth-piece 5 is formed with a tapered extension 6 through which the passage 1 extends and this extension can be proportioned to wedge tightly in counterbore 4.

The trap constituting the present invention comprises' a body 8 having a chamber 9 extending thereinto from the bottom thereof at the center and provided with a dome-like top wall I0. A removable closure, such as a screw plug II is seated `in the bottom of the chamber and is formed with a recess I2 forming a cup which opens upwardly into chamber 9.

A tapered extension I3 of the same shape and size as extension 6 projects from one end of body 8 while a tapered counterbore I4 isl formed in the opposite end of the body and is of the same size as counterbore 4.

A passage I5 is formed in extension I3 and, in the structure shown in Figure l, the outer portion of this passage is coaxial with the counterbore I4. The inner` end portion of passage I5 extends downwardly to the chamber 9 as at I6 and a similarly inclined passage I1 connects the chamber to the center of counterbore I4.

In use the extension I3 is wedged in counterbore 4 while extension 6 is wedged in counterbore I4. Thus passages 3 and 1 will aline with each other and with passage I5.

Fumes drawn from the bowl I will ow to the inclined end I6 of passage I5 where they will be deflected downwardly into chamber 9. Here a swirling action will be set up and the smoke will ultimately flow up the inclined passage I1 topassage 1. A portion of the moisture carried by the smoke will become condensed when it contacts with the deflecting passage I6 and will drain downwardly into chamber 9. Other moisture will become condensed within chamber 9 and should some of `it be carried upwardly within the deiiecting outlet passage I1 of the chamber, it will have an opportunity to be further condensed and to fiow down into chamber `9. Thus the greater portion of the objectionable moisture will be retained and subsequently the closure I I can be removed for cleaning purposes. By providing a tapered extension I3 which is of the same shape and size as the extension 6, it is to be understood that, if desired, the interposed trap 8 can be discarded and the extension 6 inserted into the counterbore 4. When the trap is to be used it can be readily reinserted into position.

In Figure 2 the stem I8 is inclined so that the passage I9 therein will not aline with passage 20 in mouth-piece 2|. Extension 22 isI also inclined so as to seat properly in counterbore 23. 'I'hus the fumes have a considerable distance to travel in an upward direction before being deflected downwardly into chamber 24 in body 25 and this insures more complete separation of moisture from the smoke.

Instead of forming the trap as a separate piece to be interposed between the bowl stem and the mouth-piece, it can be made integral with the mouth-piece, as in Figure 3 wherein the bowl stem has been shown at 26, the mouth-piece at 21 and the integral trap portion at 28. The smoke, while flowing through this modified form, will be affected in the same way as when it flows through the parts shown in Figure 1. It will be noted that the inner end of the cup-like plug in each form of the device is located close to but below the lower ends of the upwardly di- Verging passages. Thus' when moisture laden smoke leaves the passage in the pipe stem it will strike and rebound upwardly from the edge of the plug which thus acts as a baille to expedite separation of moisture from the smoke.

What is claimed is:

The combination with the stem and mouthpiece of a tobacco pipe, each having a straight passage extending therethrough from end to end, of .a trap detachably supported between and connected to the stem and mouthpiece, said trap comprising a one piece body having an expansion chamber extending upwardly thereinto and provided With a substantially semi-spherical top,

there being upwardly diverging passages leading from the base of the dome-shaped top of the chamber at diametrically opposed points and communicating with but out of alinement with the passages in the stem and mouthpiece, and a screw plug removably seated in the lower portion of the expansion chamber and constituting a closure therefor, said screw plug being recessed to provide a cup and having a flat inner end constituting an annular shoulder positioned in line with the lower ends of the diverging passages thereby to constitute an annular deflectng bafe adjacent to the base of the dome-like top.

CHARLES J. BURCH. 

